6507/5-3
Export:
PDF
![PDF icon](https://factpages.sodir.no/Images/file-pdf.png)
-
General information
-
Wellbore history
GeneralProduction License 212 was part of the 15th Licensing Round awarded in 1996 and covers blocks 6507/5 and 6507/6. The primary target of well 6507/5-3 was the Snadd Prospect, defined as a combined stratigraphic and structural trap with reservoir provided by turbidite sandstones of the Upper Cretaceous Lysing Formation. The well was further designed to provide adequate geoscience and engineering data to allow a confident decision for future activity on the Snadd Prospect, and a Skarv Area development plan.Operations and resultsWildcat well 6507/5-3 was spudded with the drill ship "West Navion" on the 15 May 2000. While opening the 12 1/4" pilot hole to 36", the drill string stalled out and spun back freely resulting in the BHA being dropped to the seabed. Attempts to recover the fish were made, but were unsuccessful. The rig was moved 11.6 m to the southwest and the well was re-spudded on the 19th May 2000 and drilled to TD at 3000 m in the Cretaceous Lange Formation. The well was drilled with seawater and bentonite hi-vis pills down to 695 m and with KCl/Glycol mud from 695 m to TD. The well came in as a gas discovery with the majority of the reservoir and hydrocarbon parameters within the pre-drill prognosed range. It was the first Cretaceous discovery in the Nordland area not found by chance. Top reservoir came in at a depth of 2837.5 m. The well encountered a gross reservoir section of 55.2 m with a gas water contact clearly visible on log and pressure data. The net pay in the well is 37.2 m with a net to gross ratio of 67%. Average porosity in the pay zone is 24% with average water saturation at 36%. Coring gave four short cores from the Lysing Formation in the interval 2836.5 m to 2855 m (2841.7 m to 2859.4 m loggers depth), with 54% to 100% recovery. Several technical problems were encountered during coring. Three MDT fluid samples were recovered from the Lysing Formation. Of these, two samples at 2843 m and 2864.5 m contained gas, while a sample at 2875 m contained water.The well was permanently abandoned as a gas discovery on the 23 June 2000.TestingNo drill stem test was performed -
Cuttings at the Norwegian Offshore Directorate
Cuttings at the Norwegian Offshore Directorate Cuttings available for sampling?YESCuttings at the Norwegian Offshore Directorate Cutting sample, top depth [m]Cutting samples, bottom depth [m]700.002999.00 -
Cores at the Norwegian Offshore Directorate
Cores at the Norwegian Offshore Directorate Core sample numberCore sample - top depthCore sample - bottom depthCore sample depth - uom12836.52840.0[m ]22843.02843.7[m ]32844.02851.6[m ]42852.02855.0[m ]Cores at the Norwegian Offshore Directorate Total core sample length [m]14.7Cores at the Norwegian Offshore Directorate Cores available for sampling?YES -
Core photos
-
Casing and leak–off tests
Casing and leak–off tests Casing typeCasing diam.
[inch]Casing depth
[m]Hole diam.
[inch]Hole depth
[m]LOT/FIT mud eqv.
[g/cm3]Formation test typeCONDUCTOR30536.036539.00.00LOTSURF.COND.20688.026695.01.32LOTINTERM.13 3/81670.017 1/21670.01.68LOTOPEN HOLE3000.012 1/43000.00.00LOT -
Logs
Logs Log typeLog top depth [m]Log bottom depth [m]FMI DSI4002960HALS DSI PEX GPIT16732975LWD - MPR GR5001702LWD - MPR GR28373000LWD - MPR ORD GR17022837MDT GR28432892MSCT GR28622869MSCT GR28712892VSP AMS GR10502985 -
Lithostratigraphy
Lithostratigraphy Top depth [mMD RKB]Lithostrat. unit45445414401858185820482103214222552596283828382893 -
Composite logs
Composite logs Document nameDocument formatDocument size [MB]pdf0.35 -
Geochemical information
-
Documents – reported by the production licence (period for duty of secrecy expired)
Documents – reported by the production licence (period for duty of secrecy expired) Document nameDocument formatDocument size [MB].pdf4.22.pdf28.56 -
Drilling mud
Drilling mud Depth MD [m]Mud weight [g/cm3]Visc. [mPa.s]Yield point [Pa]Mud typeDate measured6951.3228.0POLYMER13501.3216.0POLYMER17021.3215.0POLYMER20001.5621.0POLYMER27271.5830.0POLYMER28361.5821.0POLYMER28431.5822.0POLYMER28441.5825.0POLYMER28521.5822.0POLYMER28551.5822.0POLYMER30001.5718.0POLYMER30001.07SEAWATER -
Palynological slides at the Norwegian Offshore Directorate
Palynological slides at the Norwegian Offshore Directorate Sample depthDepth unitSample typeLaboratory1380.0[m]DC1410.0[m]DC1430.0[m]DC1450.0[m]DC1470.0[m]DC1830.0[m]DC1850.0[m]DC1870.0[m]DC1890.0[m]DC1910.0[m]DC2040.0[m]DC2060.0[m]DC2090.0[m]DC2120.0[m]DC2150.0[m]DC2160.0[m]DC2180.0[m]DC2190.0[m]DC2590.0[m]DC2615.0[m]DC2636.0[m]DC2669.0[m]DC2702.0[m]DC2732.0[m]DC2762.0[m]DC2792.0[m]DC2822.0[m]DC2838.7[m]COD2838.8[m]C2838.9[m]C2839.4[m]COD2840.0[m]DC2843.0[m]C2845.3[m]C2845.3[m]COD2845.4[m]C2848.6[m]C2848.8[m]C2849.9[m]C2851.4[m]C2851.4[m]COD2853.7[m]C2853.8[m]COD2854.4[m]C2858.0[m]DC2862.0[m]SWC2868.5[m]SWC2873.0[m]DC2874.0[m]SWC2881.0[m]SWC2885.0[m]SWC2891.5[m]SWC2894.0[m]DC2906.0[m]DC2927.0[m]DC2948.0[m]DC2969.0[m]DC2981.0[m]DC2999.0[m]DC3838.6[m]COD -
Thin sections at the Norwegian Offshore Directorate
Thin sections at the Norwegian Offshore Directorate DepthUnit2836.55[m ]2845.00[m ]2848.00[m ]2850.25[m ]2853.50[m ]